Long ago, Jessica Langford endured - and escaped - the menace of a serial killer who buried his victims alive. Overcoming this experience, she started her own radio program, helping those who live in fear to overcome their pasts just as she did. But then an anonymous man calls in to her show with knowledge of her experience-and her worst nightmares. She must uncover the mysterious caller's intentions before he kills again-and turns Jessica's life into a living hell.